The comet was predicted to return in 1922, but was lost (see lost comet).
In 1928 the discovery of Comet Reinmuth 1 was originally assumed to be Comet Taylor, and again in 1951 the same assumption was made with Comet Arend-Rigaux.
The comet was recovered for the returns in 1984 and 1990, and in January 1998 was observed as magnitude 12 when it was 1AU from Earth.[3][4]
There were 6 recovery images of 69P in October 2018 when the comet had a magnitude of about 20.5.[1] Due to the lack of observations, when the comet is at perihelion on March 18, 2019 and 2.45AU from Earth, the 3-sigma uncertainty in the comet's Earth distance will be ±6000 km.